Oprah posted this snap on her Instagram with the caption: "My first time meeting Mick Jagger! And yes he dances like MICK JAGGER?" Capital letters - that's excitement right there.

Anna Kendrick and Beyonce

Pitch Perfect star Anna Kendrick hails herself as #Fangirloftheyear after meeting Beyonce at The Grammys. Anna even added the heart to this Instagram post.

Selena Gomez and Shia LaBeouf

Singer Selena is pranked by her team who lead her to believe she's actually meeting a fan, only to find it's Transformers star Shia LaBeouf. Cue panic...

Lupita NYong’o and Leonardo DiCaprio

Oscar winner Lupita sums up her love for Leonardo DiCaprio on Instagram with this picture caption: "#GoldenGlobes checklist: Meet Leonardo DiCaprio and tell him how much I have loved his work since I was 14 – CHECK!"

David Beckham and the cast of Only Fools and Horses

"I can die happy" Beckham said of working with Nicholas Lyndhurst and Sir David Jason on this year's Sport Relief Only Fools and Horses sketch. Becks added this action shot to his Facebook account.

Nicole Richie and Britney Spears

Getting pulled up on stage in the middle of a concert in Vegas by Britney Spears? There's just no telling how excited we'd be. Nicole Richie danced with the star and even got this tour t-shirt to take away.

Lady Gaga and EastEnders star June Brown

An odd pairing for The Graham Norton show one might have thought, but Lady Gaga went, well, gaga for the Dot Cotton actress telling her she wanted to "drink from her cup to see what those genes are".

Vanessa Hudgens and Meryl Streep

Talking of cups, chat show host Ellen DeGeneres struggled to get a word in as actress Vanessa Hudgens celebrated meeting Meryl Streep, eventually giving her Meryl's discarded mug.